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I would like that when I evaluate a notebook it first quits the last local kernel and then starts local kernel again. Is there any command to do this without using the Evaluation menu in Mathematica?
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Quit[] can be used to terminate the kernel, and then anything else evaluated in the notebook will start it again.
To stop this computation, first select its cell bracket: Then select Abort Evaluation from the Evaluation menu: The Wolfram System then outputs $Aborted: If Abort Evaluation does not succeed in stopping the computation, you can do so by quitting the active kernel.
Start Mathematica. Navigate to the menu item Evaluation ► Kernel Configuration Options. The Kernel Configurations dialog appears. To add a new kernel and configure it, click Add.
Close Mathematica, then delete or rename all these directories in order to reset Mathematica to its default configuration. Mathematica will recreate these directories the next time you start the software.
Quit[] can be used to terminate the kernel, and then anything else evaluated in the notebook will start it again.
If the reason you want to do this is to make sure that what is run in the notebook does not conflict with any previously defined symbols, then you may instead set menu:
Evaluation > Notebook's Default Context > Unique to This Notebook
If you are wishing to Quit[] the kernel frequently, then you may wish to set up a keyboard shortcut. For that, see this answer:
Customizing Mathematica shortcuts
If you find that Mathematica slows down in the middle of processing a long notebook, and the latter parts of that notebook do not depend on the earlier parts, you may wish insert this at the beginning of your notebook:
Needs["Utilities`CleanSlate`"]
and then insert:
CleanSlate[]
where you want the effect of Quit[]
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